2015 Kia Sorento: engine stalls while driving

Filed Jul 5, 2026 · Engine · TN

My 2015 Kia Sorento is experiencing a catastrophic structural failure of the exhaust system where the front manifold catalytic converter has internally collapsed This is a severe safety hazard because the physical blockage of the exhaust flow creates massive engine backpressure stalling when trying to drive even a small hill on highway, risking sudden engine stalling, unprompted deceleration, and power loss at highway speeds, which increases the risk of a crash. Furthermore, the blocked exhaust gases generate extreme temperatures under the hoods if it's running hot presenting a distinct vehicle fire hazard. I have maintained this vehicle and had all previous safety campaigns addressed, including a complete engine replacement and the required engine control software updates. Despite these recalls being fully completed, the vehicle has still suffered this severe exhaust system failure. The Check Engine light was on, and diagnostic scanning shows fault code P2096.I thought it was my transmission but a professional dealer assessment confirmed a manifold catalytic converter," "contamination of honeycomb on front of rear catalytic converter," and severe "contamination on the O2 sensor."He could not fixed An oxygen sensor replaced had to be fixed by someone else Abrasive ceramic dust from the melting manifold structure is actively being drawn back into the engine cylinders, threatening to destroy the newly replaced engine that Kia replaced but . this failure mirrors the exact physical mechanics and safety risks outlined in Kia's previous safety campaign SC176 (the federal safety agency Campaign 19V‑120). Despite experiencing the identical defect and safety threat on a fully updated vehicle, my VIN was excluded from the recall I am filing this complaint because this known safety defect poses an active threat to my safety.my husband was a 100% disable vet who passed in April 2025,I can'a afford to have this same item repaired that Kia suppose to have repaired,Please help me

Filed Jun 25, 2026 · Engine · OK

My 2015 Kia Sorento is experiencing a catastrophic structural failure of the exhaust system where the front manifold catalytic converter has internally collapsed and broken apart. This is a severe safety hazard because the physical blockage of the exhaust flow creates massive engine backpressure, risking sudden engine stalling, unprompted deceleration, and power loss at highway speeds, which increases the risk of a crash. Furthermore, the blocked exhaust gases generate extreme temperatures under the hood, presenting a distinct vehicle fire hazard. I have proactively maintained this vehicle and had all previous safety campaigns addressed, including a complete engine replacement and the required engine control software updates. Despite these recalls being fully completed, the vehicle has still suffered this severe exhaust system failure. The Check Engine light was on, and diagnostic scanning shows fault code P2096. A professional dealer assessment confirmed a "collapsing manifold catalytic converter," "contamination of honeycomb on front of rear catalytic converter," and severe "contamination on the O2 sensor." An oxygen sensor replaced in December 2025 has already been destroyed by the upstream ceramic debris. Abrasive ceramic dust from the melting manifold structure is actively being drawn back into the engine cylinders, threatening to destroy the newly replaced engine. This failure mirrors the exact physical mechanics and safety risks outlined in Kia's previous safety campaign SC176 (the federal safety agency Campaign 19V‑120). Despite experiencing the identical defect and safety threat on a fully updated vehicle, my VIN was excluded from that specific campaign, and Kia corporate has flatly denied goodwill assistance. I am filing this complaint because this known safety defect poses an active threat to vehicle control and occupant safety. I've attached the current repair assessment, and can provide the assessment of the previous replacement of the O2 sensor when warranted.

Filed May 18, 2026 · Engine · WA

I am filing a safety complaint regarding a 2015 Kia Sorento equipped with the 2.4L Theta II engine. The vehicle developed progressive engine knock, reduced power, and check engine warnings while driving. Diagnostic trouble codes include P0017, P0014, and P0340 relating to crankshaft/camshaft timing correlation and camshaft position faults. A Kia dealership performed diagnostic testing using Kia diagnostic equipment (KDS) and documented abnormal knock activity across all cylinders. The dealer repair order specifically states: * “Found data PIDs for additional knock noise” * “All registering knock on all cylinders” * “Recommend replacement of engine sub assy based on knock detection” The vehicle experiences engine knocking and loss of power that create concern for sudden engine failure or stalling while driving, which could increase crash risk. This complaint is being submitted because the symptoms appear consistent with the known Theta II engine defect involving connecting rod bearing failure, engine knock, seizure, and potential engine failure.

Filed Feb 12, 2026 · Engine · 98,954 miles · GA

The contact owns a 2015 Kia Sorento. The contact stated that while driving approximately 40-45 MPH, the vehicle stalled. There was no warning light illuminated. The vehicle was pulled over to the side of the road. The contact attempted to restart the vehicle, but the engine made abnormal knocking sounds. The vehicle was towed to the residence and failed to restart. A mobile technician diagnosed the vehicle with engine failure. The vehicle was not repaired. The dealer and the manufacturer were not contacted. The failure mileage was 98,954.

Filed May 3, 2025 · Engine · GA

With little to no warning my check engine, steering, and oil lights turned on and the engine stalled after a loud noise as I was coming to a stop. This occurred on a major highway and could have been catastrophic and dangerous if it occurred at full speed by leaving my vehicle in the middle of the road open to potential collisions that could harm myself or others. Thank goodness i did not have any passengers. I was barely able to pull off to the median and had the vehicle towed to a mechanic who confirmed the engine had seized due to rapid oil loss and found metal debris in the engine oil. They are recommending a full engine replacement. I called the dealership to see if they would agree to inspect the vehicle or see if there had been any reports or recalls associated. I specifically asked them is there was a knock sensor update needed on my vehicle since the mechanic told me there are open complaints about this upgrade not being done and it causing engine failure. The dealership I spoke with stated there are no upgrades or recalls open for my vehicle and refused to inspect the vehicle stating "there is nothing in their system that would indicate an issue". The vehicle is available for inspection for now. I see there are many similar reports over the past year or so for this model. There apparently was a recall for this issue on the following year's model and the 2.4 engine, however I strongly believe the 2015 Sorento 3.3 engine should be thoroughly investigated.

Filed Mar 20, 2025 · Engine, Fuel system · PA

The problem started when our car died while driving it. After a few different replacements, Kia decided to replace the entire engine under a recall. After driving the car for a short period of time, the check engine light came on. I went to check the oil and it smelled overwhelmingly like gasoline. I took it to my mechanic who said the check engine light was coming on because of the catalytic converter needing replaced. And the high pressure fuel pump was leaking gas into the oil tank. He said that both of these reasons were because the engine was replaced and they should have all been replaced simultaneously under the recall. I did look it up and there was a second recall for 2015 Kia Sorentos who had there engine replaced, that the high pressure fuel pump should be replaced because it was leaking gas into the oil tank. However, Kia told us we do not qualify for the recall because it was a different type of engine. But this is the exact same car and exact same issue, therefore I feel this should be included under the recall 17V‑224.

Filed Nov 14, 2024 · Engine · 162,645 miles · WI

March of 2022 the engine stalled out and found out due to coolant leaking from head gasget area. Put new engine in and July 2024 the new engine started stalling and knocking. No warning lights. In middle of busy traffic and died. Rod bearings failed and metal shavings appeared in engine. Need another engine but can't afford it. Dealership said its manufacturer problem. I know other kia engines were covered under the problem with rod bearing but ours wasn't. This should be included

Filed Jun 20, 2024 · Engine, Steering · 106,000 miles · FL

The contact owns a 2015 Kia Sorento. The contact stated while driving approximately 55 MPH, the brakes locked up, the steering seized, and the vehicle stalled. The contact stated that there were several unknown warning lights illuminated. The contact was barely able to pull off the highway. The contact was not able to restart the vehicle. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine had seized and needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 106,000.

Filed May 9, 2024 · Engine · OR

2015 kia sorento 3.3 GDI engine out of know where the car stalled on a hwy engine now knocks loudly was told it has to be completley replaced no warning or anything kia is saying its going to be 11k to fix

Filed Mar 16, 2024 · Engine · SC

Engine has seized. Mechanic at local automotive shop stated that the engine seizure is due to engine burning oil internally. Told me to call KIA because they were aware of this problem due to safety recall. I reported problem to KIA dealership but was told there was no safety recalls relating to my vehicle. Check engine light has been coming on sporadically since 2018 along with my vehicle randomly stalling while idling in traffic. KIA was made aware of these problems and did a diagnostic, stating that the light wasn't on during inspection. And there was no reason for stalling. Also reported smell of chemical and fumes several times but nothing was found. When my vehicle reached 100k miles I was told by KIA dealer that it is normal for the check engine light to stay on due to wear and tear/high mileage. Engine seized while driving.

Filed Mar 11, 2024 · Engine · TX

While driving home from picking my children up, engine started making a knocking noise. No warning lights or indicators were illuminated. Engine stalled while pulling down my driveway. Took it in for a Diagnosis. Metal flakes have been found in the oil. 3.3L Lambda two engine reliability is already being questioned.

Filed Jan 14, 2024 · Brakes, Electrical · VA

Check engine light started coming on at about 39,000. miles took to local mechanic who preformed lots of repairs and called Kia for information concerning engine issue. Received notice of recall from Kia on the HECU -instructing me to park truck away from home due to fire. Check engine light back on again at 41,000 miles, took to dealership where they replaced the HECU and fuel pump and fuel lines. Picked up truck and noticed when braking the truck shook all over and seem to almost stall when taking off. Check engine was back on and the alert of the system telling me I had an engine failure. Took truck back next day, again repairs of the PVB valve was done. Someone drove the truck of 180 miles on a check engine light and unplugged the battery. Got truck back and within 10 minutes the check engine light was back on and the system telling me engine failure and truck was unsafe to drive. Truck now at another Kia dealership, after many conversation with Kia the representative instructed me to tell the dealership where the truck was that the truck had a recall (supposedly) fixed. Called the dealership now tells me there is no fix for the HECU issue and they can not tell me the truck is safe to drive. I have not had the truck for now 4 months and Kia doesn't know how to fix it. I have filed 4 cases against Kia, they have not offered me a rental car or loaner and they do not have any expected date for me to get the truck back. I have files but it won't let me upload them for the receipts/ information from Kia